A small steel sphere falls with a terminal velocity in a viscous fluid of 2.00 cm/s.If the radius of the steel sphere is doubled,then what is the terminal velocity of the sphere?
A) 1.00 cm/s
B) 2.00 cm/s
C) 4.00 cm/s
D) 6.0 cm/s
E) 8.00 cm/s

Question

Quizplus · Accepted Answer

The terminal velocity of a sphere in a viscous fluid is proportional to the square of its radius. If the radius is doubled, the terminal velocity increases by a factor of four (2^2), so the new terminal velocity is 8.00 cm/s.

A Small Steel Sphere Falls with a Terminal Velocity in a Viscous